What is the value of Planck’s constant in J s?
Planck’s constant, used in quantum theory to relate energy and frequency ( E = h nu ), is 6.626 × 10 ⁻³⁴ J s. This follows from latest NCERT 2026-27 principle explaining the concept clearly for NEET students in simple steps as per rationalized syllabus.
Ref: NCERT Chemistry Textbook - Latest Edition for Academic Session 2026-27 (Rationalized Textbook for Class XI and XII)Topic: Mole concept, atomic structure, chemical formulas like H₂O, CO₂, CH₃CH₂NH₂ and periodic trends.